How can we turn the clock back and reverse our biological age? Lauren Kessler took matters in her own hand to find out. Lauren is a journalist, and Director of the Graduate Program in Narrative Journalism at the University of Oregon. Her past investigative endeavors ranged from a study on Alzheimer's to dealing with teenage daughters. With her latest book, Counterclockwise, she takes us on a journey to turn back her own biological clock, while teaching us all how to keep fit and have a youthful mindset even in our later years.